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Finding the Fourth Proportional to 65,171.86, 89,936.85 and 35,363.86

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Solution

The fourth proportional to 65,171.86, 89,936.85 and 35,363.86 is: 48,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,171.86 : 89,936.85 = 35,363.86 : x
  2. Step 2: Convert to fraction form
    65,171.86/89,936.85 = 35,363.86/x
  3. Step 3: Cross multiply
    65,171.86x = 89,936.85 × 35,363.86
  4. Step 4: Simplify right side
    65,171.86x = 3,180,514,172.24
  5. Step 5: Solve for x
    x = 3,180,514,172.24/65,171.86
  6. Step 6: Final answer
    x = 48,801.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.